312402020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{521}}^1\times {\mathrm{4283}}^1$

素因数の和:4820

約数の個数: 48

約数和(自身を含む): 751379328

約数和(自身を除く): 438977308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 521, 1042, 2084, 2605, 3647, 4283, 5210, 7294, 8566, 10420, 14588, 17132, 18235, 21415, 29981, 36470, 42830, 59962, 72940, 85660, 119924, 149905, 299810, 599620, 2231443, 4462886, 8925772, 11157215, 15620101, 22314430, 31240202, 44628860, 62480404, 78100505, 156201010, 312402020]

約数ペア:

[(1, 312402020), (2, 156201010), (4, 78100505), (5, 62480404), (7, 44628860), (10, 31240202), (14, 22314430), (20, 15620101), (28, 11157215), (35, 8925772), (70, 4462886), (140, 2231443), (521, 599620), (1042, 299810), (2084, 149905), (2605, 119924), (3647, 85660), (4283, 72940), (5210, 59962), (7294, 42830), (8566, 36470), (10420, 29981), (14588, 21415), (17132, 18235)]